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Resistances on Wide and Narrow Curves of Railroads - p26
doi:10.1038/scientificamerican10061855-26a
Improvement in Railroad.-Atmospheric Residency - p26
doi:10.1038/scientificamerican10061855-26c
Resping and Mowing Machine-Controverter Point - p27
doi:10.1038/scientificamerican10061855-27c
Insects and Pestilence.—The Cholera and Yellow Fever - p30
doi:10.1038/scientificamerican10061855-30
Insuring the Lives of Railroad Engineers - p30
doi:10.1038/scientificamerican10061855-30b
